What is "4-METHYLBENZYLIDENE CAMPHOR" and what does it do? -

Role:Organic UV filter

Family: ENZACAMENE,Recent UV filter UVB

4-Methylbenzylidene Camphor is a chemical sunscreen that protects against UVB rays (290-320 nm), with maximum absorption at 301 nm. It comes in the form of an oil-soluble powder. Although it has a certain instability to light (losing 10% of its protective power in 65 minutes and half in 345 minutes), it has the ability to stabilize the UVA filter, avobenzone, renowned for its great instability.

Safety issues:
As far as safety is concerned, information is mixed. There are two major concerns about this substance. Firstly, it can be absorbed by the body. Secondly, it may have estrogenic activity. However, it is important to note that this estrogenic activity has only been demonstrated in rats and is probably not applicable to humans. Despite these concerns, 4-Methylbenzylidene Camphor is recognized as safe when used correctly. It is legally approved up to 4% in the EU and Australia. However, it has not received approval in the USA or Japan.

Conclusion and recommendations:
Although there are better UVB filter options, if your favorite sunscreen contains 4-Methylbenzylidene Camphor, there's probably not much to worry about. As always, it's crucial to be well informed and to choose the products that best suit your individual needs.